Dublin Rivers, Canals and Roads

The chief river is the Anna Liffey ("the water of Liffey"), which has its principal source at Sally gap, in the Wicklow mountains, and taking a circuit westward through Kildare county, enters that of Dublin near Leixlip, where it is joined by the Rye water from Kildare, and pursues a winding eastern course nearly across the middle of it, descending through a deep and rich glen by Lucan and Chapelizod: below the latter it flows through some pleasing scenes on the borders of Phoenix Park: at Island-Bridge it meets the tide, and a little below it enters the city, to the east of which it discharges its waters into the bay of Dublin. The river is navigable for vessels of 300 tons up to Carlisle bridge, the nearest to the sea; for small craft that can pass the arches, up to Island-Bridge, and for small boats beyond Chapelizod: so circuitous is its course, that although the distance from its source to its mouth, in a direct line, is only ten miles, yet, following its banks, it is no less than forty.

Numerous streams, which supply water to many mills, descend into the Liffey: the principal are the Dodder, the Brittas or Cammock, and the Tolka; a stream called the Delvan forms the northern boundary of the county at Naul. The two great lines of inland navigation commence in Dublin city, but as they run in parallel directions within a few miles of each other during some parts of their course, the benefits anticipated from them have not been realised to the utmost extent.

The Grand Canal was originally commenced in the year 1755, by the corporation for promoting inland navigation in Ireland: in 1772, a subscription was opened, and the subscribers were incorporated by the name of the Company of Undertakers of the Grand Canal, who, by the completion of this work, have connected the capital both with the Shannon and the Barrow. Its entire cost was £844,216, besides £122,148 expended on docks: one-third was defrayed by parliament.

The Royal Canal, incorporated by a charter of George III., in 1789, and afterwards aided by a grant of additional powers from the legislature, is navigable from Dublin to Longford and Tarmonbarry, near the head of the navigable course of the Shannon, an extent of 92 miles: its construction cost £776,213, which was wholly defrayed at the public expense. The roads and bridges are for the most part in excellent order, being frequently repaired at great expense.

The Circular Road is a turnpike, nearly encompassing the metropolis, beyond which the Grand and Royal canals for a considerable distance run nearly parallel: from these limits of the city the great mail-coach roads branch in every direction, and all, excepting the south-east road through Wicklow to Wexford, are turnpikes.

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